Analysis and Verification of a Half-Dual Bridge Resonant Converter with Voltage Match Modulation

Author:

Wang Rui,Li Yinan,Sun ChuanORCID,Hu Song,Li XiaodongORCID,Chen Wu,Lv Gang

Abstract

To overcome the weakness of the narrow conversion gain of dual bridge resonant converter, a half-dual bridge resonant converter (H-DBRC) with voltage match modulation (VMM) is proposed and implemented for wide voltage range applications. The H-DBRC, including a full bridge on the primary side and a half bridge on the secondary side, is adopted to realize the bidirectional power flow and wide voltage operation. Owing to the synergy between the H-DBRC structure and VMM strategy, the converter can operate in full-bridge state and half-bridge state with maximized ZVS (zero-voltage switching) operation and minimized circulating current. The steady-state analysis is performed and the solutions for both forward and backward modes could be obtained uniformly by using the fundamental harmonics approximation approach. The soft-switching characteristics, implementation process and design example are analyzed in detail. Finally, to confirm the theoretical analysis and feasibility, both simulation and experimental verifications are demonstrated in this paper. Since the converter consistently achieves voltage-matching operation, the optimal ZVS range can be obtained when the voltage gain M is between 0.5 to 1. Moreover, the economic cost and control complexity are greatly reduced because only six switches are required in the converter.

Funder

National Natural Science Foundation of China

FDCT

Natural Science Foundation of Jiangsu Province

Natural Science Foundation of Jiangsu Higher Education Institutions of China

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. A Half-Dual Bridge Resonant DC/DC Converter with CLC-Type Resonant Network;2023 4th International Conference on Power Engineering (ICPE);2023-12-11

2. An Unbalanced Duty Cycle Modulation for Dual-Bridge Resonant Converter;2023 4th International Conference on Power Engineering (ICPE);2023-12-11

3. Graph Theory-Based Sneak Circuit Analysis and Trigger of Semi-DAB With Parasitic Parameters;IEEE Transactions on Power Electronics;2023-08

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